JPH0512123Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a seal structure for the lower edge of a door opening, which includes a main seal and a sub-seal.

(Prior Art) As a conventional sealing structure for the lower edge of a door opening, for example, the one described in Japanese Utility Model Application Publication No. 57-195910 is known.

In this conventional structure, a flange portion is provided along the lower edge of the sliding door opening of the vehicle, and a main seal is provided on the flange portion, the tip of which can come into contact with the inner surface of the sliding door when the sliding door is closed. ,
A sub-seal for closing the gap between the main seal and the lower edge of the slide door was disposed in contact with the lower edge of the slide door.

(Problem to be solved by the invention) However, in such a conventional seal structure for the lower edge of the door opening, the tip of the sub-seal is placed in contact with the lower edge of the door when the door is closed. When opening and closing the door, the lower edge of the door rubs against the tip of the door, damaging the paint film on the lower edge of the door, peeling off the paint film, and causing rust. There was a problem in that it was difficult to position it so that it was in contact with the lower edge.

(Means for solving the problem) The present invention was made with the purpose of solving the above-mentioned problems, and to achieve this purpose, the present invention has been developed to A flange portion is provided along the edge, and a main seal made of an elastic material whose tip can come into contact with the inner surface of the door when the door is closed is provided on the flange portion. In the sealing structure for the lower edge of a door opening, the sub-seal is provided with a tip lip portion formed of material and disposed between the lower edge of the door and the lower edge of the opening, wherein the tip of the tip lip portion is disposed between the lower edge of the door and the lower edge of the opening. The means is formed to extend downward until it is disposed below the lower edge of the door in the closed state so as to form a gap in the vertical direction between the door and the lower edge of the door when the door is closed.

(Function) Therefore, in the seal structure of the lower edge of the door opening of the present invention, since the tip lip of the sub-seal is arranged with a gap from the lower edge of the door when the door is closed, it is difficult to open or close the door. When the door is opened, the lower edge of the door and the tip lip part do not rub against each other.

Also, when driving in the rain, water, mud, pebbles, etc. that splash up from the road surface hit the tip lip and are bounced back. In other words, since the sub-seal is made of an elastic material, when it comes into contact with water, mud, pebbles, etc., the upward pressure of the sub-seal causes the tip lip to move upward and come into contact with the lower edge of the door, causing the door to close. The gap with the lower edge is closed and sealed. Therefore, water and mud do not directly infiltrate through the gaps. Even if water intrudes during car washing, etc., it quickly flows downward through the gaps.
Water does not accumulate between the main seal and sub-seal.

(Example) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In describing this embodiment, a seal structure at the lower edge of a sliding door opening of a type of automobile called a one-box car will be taken as an example.

First, the configuration of the embodiment shown in FIGS. 1 and 2 will be explained.

The seal structure of the lower edge of the sliding door opening in the embodiment of the present invention is as shown in FIG.
0 and a sub-seal 70 are the main components.

The sliding door opening 10 is opened and closed by a sliding door 20, and as shown in FIG.
It is formed by opening the left side of 00.

The sliding door 20 is slidably provided in the sliding door opening 10 in the longitudinal direction of the vehicle by a sliding mechanism 30. As shown in FIG. 1, the sliding door 20 has a door outer panel 21 and a door inner panel. It is formed by joining and fixing the panel 22.

The slide mechanism 30 includes a lower roller 31 and a lower guide groove 32, as shown in FIG.

The lower roller 31 is attached to the front lower end of the door inner panel 22 via a roller bracket 33, and includes a load roller 36 which is pivoted by a horizontal shaft 35 to a downwardly bent portion 34 formed at the tip of the roller bracket 33. A guide roller 39 is attached to the upper end of a horizontal arm 37 extending ahead of the load roller 36 by a vertical shaft 38.

The lower guide groove 32 serves as a guide groove for the lower roller 31, and is formed along the lower edge of the door opening 10, and a guide bottom panel 41 having a substantially L-shaped cross section is attached to the lower surface of the step panel 40. The rolling surface 42 of the load roller 36 is formed on the inner surface of the horizontal portion of the guide bottom panel 41, and the guide rail 43 of the guide roller 39 is attached to the lower surface of the step panel 40 so as to open downward. It has a structure.

Note that a reinforcing member 44 is provided at the lower part of the guide bottom panel 41 to increase the rigidity of the guide bottom panel 41.
are joined and fixed, and an extension part 45 extending outward from the vehicle is formed at the distal end of this reinforcing member 44.

The flange portion 50, as shown in FIG.
It is formed by extending the tip of the guide bottom panel 41 and bending it upward, and is provided along the lower edge of the sliding door opening 10.

The main seal 60 is made of rubber, and its tip touches the door inner panel 22 when the sliding door 20 is closed.
It is provided over the entire periphery of the sliding door opening 10 so as to be able to come into contact with it, and is attached to the flange portion 50 at the lower edge, as shown in FIG.

The sub-seal 70, as shown in FIG.
A base portion 73 having a U-shaped cross section is attached to the extension portion 45 at a lower portion of the main seal 60 .

The sub-seal 70 is made of rubber, and has a tip lip 71 extending from the base 73 toward the lower edge 23 of the slide door.
It is arranged so as to cover the lower edge 23 of 0 from below and with a gap t between it and the lower edge 23 in the vertical direction. Further, a contact portion 72 formed upward from the base portion 73 is in contact with the lower end portion 61 of the main seal 60.

Next, the operation of the embodiment will be explained.

When the sliding door 20 is opened or closed, the load roller 36 rolls on the rolling surface 42 of the guide bottom panel 41 within the lower guide groove 32, and the guide roller 39 rolls within the guide rail 43.

In this case, since the rolling surface 42 has increased rigidity by the reinforcing member 44, it will not be deformed by the load of the sliding door 20 applied by the load roller 36.

In addition, since the tip lip portion 71 is disposed with a gap t from the lower edge 23 of the slide door 20 when the slide door 20 is closed, the tip lip portion 71 has a gap t between the lower edge 23 of the slide door 20 and the tip lip when the slide door 20 is opened and closed. The parts 71 do not rub against each other.

As shown by the solid line in FIG. 1, when the sliding door 20 is closed, the tip of the main seal 60 comes into contact with the door inner panel 22.
The entire periphery of the sliding door opening 10 is sealed by the main seal 60, and rainwater, dust, etc. do not enter the vehicle through the sliding door opening 10.

In addition, the tip lip portion 71 of the sub-seal 70 removes mud, pebbles, etc. that are thrown up from the road surface toward the lower end of the main seal 60 and the sliding door 20 while driving.
It hits and bounces back. Also, when washing a car, etc., the gap t
Even if water intrudes from the gap t, it flows downward through the gap t, resulting in good drainage.

Therefore, the main seal 60 and the sliding door 2
The lower edge 23 of the 0 is not soiled, damaged, or scratched by mud, pebbles, etc.

Furthermore, when the tip lip portion 71 is hit by mud, pebbles, etc., the tip lip portion 71 moves upward and comes into contact with the lower edge 23 of the sliding door 20, as shown by the imaginary line in FIG. Since the gap t is closed, the lower edge of the sliding door opening 10 is reliably sealed by the sub-seal 60.

In addition, in the embodiment, since the abutting portion 72 of the sub-seal 70 is in abutment with the lower end 61 of the main seal 60, even if rainwater enters through the gap t, the rainwater will not reach the lower part of the main seal 60. It is possible to prevent the water from entering the main seal 60 through the flange portion 50 and entering the vehicle interior.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention may be modified without departing from the gist of the present invention. included.

For example, in the embodiment, the main seal 60 and the sub-seal 70 are formed separately, but they may be formed integrally.

Further, in the embodiment, the reinforcing member 44 is provided and the sub-seal 70 is provided at the tip thereof, but the reinforcing member may not be provided, and the sub-seal 70 may also be provided.
0 may be provided on the guide bottom panel 41 or the like.

(Effect of the invention) As explained above, in the seal structure of the lower edge of the door opening of the present invention, a vertical gap is formed between the tip of the tip lip of the sub-seal and the lower edge of the door. This ensures the protection of the main seal and the lower edge of the door, while also preventing the lower edge of the door from rubbing against the lip when opening and closing the door. This has the effect of reducing resistance and preventing the occurrence of rust due to peeling of the paint film on the lower edge of the door. Furthermore, when water, mud, pebbles, etc. hit the sub-seal, the tip lip moves upward and closes the gap between it and the lower edge of the door, resulting in high sealing performance.

Further, this gap allows for good drainage between the main seal and the sub-seal, so that the rust prevention quality can be improved.

In addition to the above-mentioned effects, in the embodiment,
Since the sub-seal has a contact part that comes into contact with the lower part of the main seal, it is possible to prevent rainwater that has entered through the gap from entering the main seal from the lower part of the main seal and entering the vehicle interior through the flange part. can.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a seal structure at the lower edge of a door opening according to an embodiment of the present invention, and FIG. 2 is a side view showing a vehicle equipped with the structure of the embodiment. 10...Door opening, 20...Door, 50...
...Flange part, 60... Main seal, 70...
Sub-seal, 71...Tip lip part, 100...
vehicle, t... gap.

Claims (1)

[Scope of claim for utility model registration] A flange portion is provided along the lower edge of the door opening of the vehicle body, and the flange portion is made of an elastic material so that the tip can come into contact with the inner surface of the door when the door is closed. A door opening is provided with a main seal, and a sub-seal is provided at a lower position of the main seal and has a tip lip portion made of an elastic material and disposed between the lower edge of the door and the lower edge of the opening. In the lower edge sealing structure, the tip of the tip lip portion is directed downward until it is disposed below the lower edge of the door in the closed state so as to form a gap in the vertical direction between the tip and the lower edge of the door when the door is closed. A seal structure for a lower edge of a door opening, characterized in that the seal structure is formed in an extended manner.